20653292402 has 4 divisors (see below), whose sum is σ = 30979938606. Its totient is φ = 10326646200.

The previous prime is 20653292393. The next prime is 20653292431. The reversal of 20653292402 is 20429235602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16017180481 + 4636111921 = 126559^2 + 68089^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5163323099 + ... + 5163323102.

Almost surely, 2^20653292402 is an apocalyptic number.

20653292402 is a deficient number, since it is larger than the sum of its proper divisors (10326646204).

20653292402 is a wasteful number, since it uses less digits than its factorization.

20653292402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10326646203.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 20653292402 in words is "twenty billion, six hundred fifty-three million, two hundred ninety-two thousand, four hundred two".